- Author: Philippe De Lombaerde Lakshmi Puri (eds.)
- Language: English
- Year: 2009
- Author: Hisham Zerriffi (auth.)
- Language: English
- Year: 2011
- Author: Nuhu George Obaje (auth.)
- Language: English
- Year: 2009
- Author: Wolf-Rüdiger Bretzke (auth.)
- Language: German
- Year: 2010
- Author: Remo Dalla Longa (auth.)
- Language: English
- Year: 2010